小程序的详情页取实训人数

app/models/subject.rb

@@ -65,6 +65,10 @@ class Subject < ApplicationRecord
     excellent ? CourseMember.where(role: 4, course_id: courses.pluck(:id)).pluck(:user_id).length : shixuns.pluck(:myshixuns_count).sum
   end
 
+  def myshixuns_count
+    shixuns.pluck(:myshixuns_count).sum
+  end
+
   def all_score
     subject_shixun_score + subject_shixun_choose_score
   end

app/views/weapps/subjects/show.json.jbuilder

@@ -3,7 +3,7 @@ json.subject do
   json.description @subject.description
   json.shixuns_count @subject.shixuns_count
   json.challenges_count @subject.subject_challenge_count
-  json.member_count @subject.member_count
+  json.member_count @subject.myshixuns_count
   json.subject_score @subject.all_score
   json.learning_notes @subject.learning_notes
 end